Car roof



Oct.`4,1921. 1,643,915,

A C. D. BONSALL CAR ROOF A Filed May 4, 192,7 .@'/zf5 //'/`7 7 7v 2 I Y i/N ,5A/roe:

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Patented Oct. 4, 1927.

UNITED STATES 1,643,915- PATEN-T OFFICE.

CHARLES DAVID BONsALL, or PI'rTsBURGII, PENNSYLVANIA, AssIGNOR fro r. II. IvIURrrIY COMPANY, or New KENSINGTON, InNNsYLvANIA, A CORPORATION or PENNSYLVANIA.

CAR ROOF.

Application filed May 4, 1927. Serial No. 188,669.

This invention relates to single-course insulated car roofs of the type wherein selfsupporting roof sheets extend from side to side of the car and are rigidly connected along their adjacent margins by upstandmg seams that function as carlines and have members secured therein for suspending the insulating lining beneath said roof sheets.

The principal object of the present inven tion is to provide a simple and efficient arrangement for supporting the insulating lining, whereby said lining may be quickly and easily placed in position and readily replaced when worn or damaged. Other objects are increased strength, compactness of design and cheapness of manufacture.

The invention consists principally in means hereinafter set forth for securing the insulating lining in place; and it also consists in the parts and in the construction and arrangement of parts hereinafter described and claimed.

In the accompanying drawing, which forms part of this specification and wherein like symbols refer to like parts wherever vthey occur, y

Fig. l is al plan View of a portion of an insulated car roof embodying my invention, Y

Fig. 2 is an enlarged transverse section through one-half of the roof on the line 22 in Fig. l,

Fig. 3 is a vertical cross-section through one Of the roof seams on the line 3 3 in Fig. 2,

Fig. t is a perspective view of a portion of one of the hanger strips,

Fig. 5 is a perspective view of a modified form of hanger strip; and

Fig. 6 is a View similar to Fig. 3, showing a modified form of the invention.

Y Referring to the Figures l to 4 of the accompanying drawing, my invention is shown in connection with an all-steel riveted-up single-course car roof comprising self-supporting roof sheets 7, which span the car from side plate 8 to side plate 8 and slope downwardly on opposite sides ofthe ridge vto form a pitch or arcuateroof. As: shown in the drawing, the side plates 8 are preferably of Z-shaped cross-section and are disposed with their webs horizontal and with their inner flanges extending upwardly. The eaves ends of the roof sheets overhang rand the vertical flange of the hanger strip outstanding base flanges l5 that rest on the the side plates and are supported on and riveted or otherwise rigidly secured tothe outwardly extending top flanges of eaves angle members 9, which extend longitudinally of the car and have their depending flanges riveted or otherwise rigidly secured flatwise to the outer faces of the upstandingl inner flanges of the said plates. rlhe roof sheets are preferably provided at their eaves ends with depending drip flanges which overhang the outer edges of the eaves angles 9. Theroof sheets are provided with upstanding side marginal seam flanges 10 and have their body portions offset upwardly adjacent to said flanges to form raised panels 1l at the side margins of said sheet. As shown in the drawing, the upstanding side marginal seam flanges lO of the roof sheets are preferably of substantially uniform depth from the ridge to points adjacent to the eaves where they slope down- 7 `wardly and merge into the plane of the side marginal panels of said sheets at the eaves end thereof. l

The roof sheets are arranged on the car side by side; and hanger strips l2 of substantially angular cross-section have one flange disposed between adjacent side seam flanges and the other flange extending beneath Vthe raised side marginal flanges of one sheet and spaced vertically therefrom. s

Metal seam covers 13 of substantially in'- verted Ushaped cross-section are placed astraddle adjacent seam flanges of said sheets disposed therebetween, and are rigidly secured to said flanges by horizontal rivets ll, thus constituting outside carlines for the roof.- The seam covers extend from eaves j to yeaves of the car and are provided with raised side marginal panels 1l ofthe roof sheets and are turned down at the eaves vover the. depending drip flanges of said sheets. yThe seam covers are of greater depth at the ridge than at the eaves, .each

Aone decreasing in depth to points adjacent to the eaves Vwhere it is curved downwardly' -over the beveled eaves ends of the upstandv vIng seam'flanges.' The base flanges l5 of Vthe seam covers are wider at the eaves than at the ridge` and are secured to the eaves angles and to the underlying panel portions ll of adjacent roof sheets preferably by A veled side margins ot lthe root sheets.

means of rivets. c As shown in the drawing,

short filler pilates 16 are located in thespac'es between'th-e upwardly otlset or panel .portions 11 ,of the sheets and lthe outstanding flanges of the veaves angles 9. Running boards 17l extend longitudinally of the car at the ridge and are supported on and secured to the lateral top flanges ot angleshaped running board v.saddles 18 that vare secured to the sides of the seam covers by the securing rivets therefor.'

The lateral base flanges of lthe hanger strips 12 are provided with notches '19 adapted 'to receive hanger or supporting bolts 196L for lining supporting members lin the form of wooden strips 20' located below 'the pan- The wooden strips 2O extend from ridge to the inner flangesof the side plates and are yprovided along` their top surfaces with a longitudinal'groove'or channel 9.1 adapted tore-v ceive the base flanges ot the hanger strips. The wooden supporting strips are Aalso provided with vertical holes adapted to receive tlie'lianger bolts and have recesses in their under sides adapted to receive nuts 19D, which are threaded'on saidbolts and Vserve to clamp 'said strips against the under sides of the roof sheets. Located immediately below the root sheets and extending from ridge to side plate between adjacent supporting strips i2() is an insulating lining compris ing` sheets or panels 22 of relativelyrigid insulating material, such 'for instance as the material known in the trade as celoteX, Said insulating sheets span theV spaces between adjacent supporting strips 20 with their side marginal portions resting in longitudinal recesses 23 provided therefor along the upper side corners ot said strips. As sown in the drawing, the i'eclessesswhich llOuse the nuts 19? on the lower ends ot the hanger bolts 19 are covered by means of separate strips of insulating nwteral 24 which are nailed or otherwise secured to the under side of the wooden supporting strips.

From the foregoingdescription it is evident that this invention results in a roof which will not sweat or collect moisture .on the underside of the root' sheets or on the lining supports or hanger bolts. It also permits the insulating material to be quickly and easily applied to the root and readily removed and replaced when worn or dainaged; it also enables the insulating lining to be clamped tightly against the undersides ot the root sheets and thus support said sheets between seams; and it also permits the hanger bolts to be quickly and easily attached and removed from the base flanges of the -hanger strips without disturbing said supports.

In the modification shown in Fig. 5, the lateral base ilanges of the angularV hanger strip is shown provided with an L-shaped bolt receiving notches 26 whose inner leg when .engaged by :the bolt serves to prevent Shifting ,of the bolt transversely otv the support. I

In the modification of the invention shown in Fig. 6 the sheets ot'insulation 22 are spaced below the vbodies ot the root' sheets and nailed or otherwise secured to the under side .oi' a wooden supportimg` strip 20L which is attached to the base flange ot the hanger strip in the manner shown in Figs. 1l tol 3 and has sufficientverticalxthicliness 'to ob' tain a 'dead air space between and the insulation.`

The invention is not restricted to the precise arrangements ot' parts shown in the drawing.

lVhat I claim is:

the roof sheets 1. A car rootl vcomprising sell-supporting root sheets extending v'it-ronreaves zto eavesv ot the car and connected along their adjacent margin vby seams, hanger vmembers secured to said seams, supporting mein-bers .detachably secured to said hanger member and an insulating lining located beneath said lroot Y sheets and supported by said supporting members, said .supporting members being adapted to be drawn upwardlytowards the beneath said root sheets and supported Vby said supportingstrips.

3. An insulated car roof comprising side plates and self-supporting root sheets spanning the car from Vside plate to side plate and rigidly connected along their adjacent margins by seams, angle strips having one liange secured in said seam and the "other flange located beneath said roof sheets, supporting strips detachably secured to said angle strips, an insulating lining located beneath said root' sheets -and supported by said supporting strips, and an insulatinglining secured to the under sides of said supporting strips. Y V

4.' A car root' comprising side plates and seit-supporting root sheets spanning lfrom side plate to ,Iside plate and secured'to each other by rigid upstanding seams, hanger strips rigidly secured in said seams and having lateral ilanges located beneath said roof sheets, supporting strips bolted to the under sides of the lateral flanges of said hanger strips, and an insulating lining located beneath said roof sheets and supported on said supporting strips.

5. A car roof comprising side plates and self-supporting roof sheets spanning the car from side plate toi-side plate and rigidly secured to each other by rigid upstanding seams, hanger strips rigidly secured in said seanis and having lateral base flanges located beneath said roof sheets, supporting strips bolted to the under sides of the lateral base flanges of said hanger strips, and an vinsulating lining located beneath said roof sheets and supported by said supporting strips, the lateral base flanges of said hanger strips being provided with notches adapted to receive the securing bolts for said supporting strips.

6. A car roof comprising side plates and self-supporting roof sheets supported on said side plates and rigidly secured to each other by rigid upstandingseams, hanger strips rigidly secured in said seams and having lateral base fianges located beneath said roof sheets, supporting strips, bolts for securing said supporting strips to the under sides ofthe lateral base flanges yof said hanger strips, nuts on the lower ends of said bolts, an insulating lining located beneath said roof sheets and supported by said supporting strips, the lateral base flanges of said hanger strips being provided with notches adapted to receive said bolts, and the under sides of said supporting strips being recessed to receive the nuts for said bolts.

7. A car roof comprising side plates and self-supporting roof sheets supported on said side plates and rigidly secured to each other by rigid upstanding seams, hanger strips rigidly secured in said seams and having lateral base anges located beneath said roof sheets, supporting strips, bolts for securing said supporting strips to the under sides of the, lateral base flanges of said hangerstrips, nuts on the lower ends of said bolts, an insulating lining located beneath said roof sheets and supported by said supporting strips, the lateral base flanges of said hanger strips being provided with notches adapted to receive said bolts, the under sides of said supporting strips being recessed to receive the nuts for said bolts, and an insulating lining for covering the under sides of said supporting strips and the nut receiving recesses therein.

8. A car roof comprising side plates and self-supporting roof sheets straddling the connected by upstanding seams, hanger strips rigidly secured in said seains and having lateral base flanges extending beneath said sheets, supporting strips located below the lateral b ase flanges of said hanger strips, bolts carried by thevbase flanges of said hanger strips for detachably securing Isaid supporting strips thereto, said bolts extending through said supporting strips and being provided at their lower ends with nuts, said supporting strips being recessed on their lower sides to receive said nuts and an insulating lining beneath said roof sheets, said lining being secured to the under sides of said supporting strips and covering the nut receiving recesses therein.

Signed at New Kensington, Pennsylvania, this 29th day of April, 1927.

CHARLES' DAVID BoNsALL.

-car from side plate to side plate and rigidly v 

